Today July 15 the DAWN spacecraft is scheduled to rendezvous with asteroid Vesta. We already have samples of Vesta thanks to the Camel Donga meteorite. In 2015 DAWN will encounter Ceres, the largest object in the asteroid belt and a minor planet in it's own right. Ceres is known to contain water, by some estimates as much fresh water as Earth. Many discoveries can come from these new worlds.